Head-rest



(No Model.)

H. H. PARKHILL.

HEAD REST.

No. 389,938. Patented Sept. 25, 1888.

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iINiTED STATES PATENT rrrcn.

HUGH H. PARKHILL, OF CHICAGO, lLLlNOlS.

HEAD- R EST.

SPECIFICATION forming part of Letters Patent No. 389,938, dated September 25, 1888. Application filed May 4, 1888. Serial No. 272,842. (No model:)

To all whom it may concern.-

Be it known that I, HUGH H. PARKHILL, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Head-Rests,ofwhich the followingis aspecification.

My invention relates to portable headrests, particularly for the use of travelers in railway-cars, or for use at home on chairs or lounges, as may be required for in valids or others.

The objects of my invention are to provide a portable head-rest that may be easily engaged with or disengaged from the back of a car-seat, chair, sofa, or other article of furniture, that may be easily adjusted and secured at any desired angle to suit the occnpant,and that is convenient to carry in a small compass when not in use. These objects I attain by the mechanism shown in the accompanying drawings, in which Figure 1 is a side elevation of my improved head-rest attached to the back of a car-seat,S. Fig. 2 is a view of the back part of the headrest and a part of the supporting-rod. Fig. 3 is a transverse section through the clamping-bolt and its socket, taken on the line a; a; of Fig. 1. Fig. 4 is a side elevation of clamping-bolt in its normal position when in use. Fig. 5 is a similar view of the clamping-bolt, taken at right angles to Fig. 4, or at a quarter-turn from said figure. Fig. 6 is a view of inside of the outer clamping-jaw and socket for clamping bolt or screw.

Similar letters refer to like parts in all the figures.

A is the head-rest proper. It is constructed as follows: An arm, (1, projects from a circular hingeplate, b, and is provided at its outer end with two head'rest cushion-bearing plates, 0 a, hinged together at the outer end of arm a. On plates 0 are secured cushions d, in the usual well-known manner. Plates 0 a may be rigidly attached to arm a instead of being hinged, as both these constructions are common in headrests.

B is the head-rest-tiltiug device, which consists of the following parts: I) is a circular plate provided with radial perforations on a part of its periphery,asshown by dotted linesin Fig. 1. Said perforations are screw-threaded at their bottoms to receive a regulating spring supported pin, 0. (Shown in Figs. 1 and 2.) Plate 1) is centrally perforated to receive pivotal set-screw f. From plate I) the supporting-rod g depends, as shownin Figs. 1 and 2. h is the twin hingeplate of b, fitting against it and pivotally secured thereto by thumb-screw f. zis an overhanging flange portion of h, perforated radially to receive pin a, which is secured to spring j. By this arrangement the headrest may be tilted to any desired angle and secured in such position by simply turning sprlngsupported pin 0 and set-screw f. I

By threading only the lower portion of pm 6, I am enabled to obtain a strong support for the head-rest without danger of breakage to pin 6, the strain against the pin being confined to its upper smooth unthreaded portion,which will give the increased strength of resistance to breakage above referred to.

O is the clamping device. It consists of two opposing clampingjaws, k Z, and a clampingbolt, D. The outer clamping-jaw, 7c, is a broad plate provided with a socket portion, in, at right angles to its upper part, as shown in Figs. 1 and 6. The socket n is of circular form, having its entrance partially cut off or blocked up by a plate, 0, equal in thickness to the spaces between the threads of clamping-bolt D, which will presently be described. Socket it extends nearly to plate It, as shown 1n dotted lines, Fig. 1. Clamping-jaw I may be similar in size, or narrower, if desired, than outer jaw, is. It has a perforated collar or hub, Z, to receive the clamping-bolt.

D is the clamping-bolt, provided near its outer end with a socket, (1, (adapted to receive supporting-rod g, before described,) and a setscrew, 1', to sc cure rod 9 in any desired position. The body of bolt D is of the shape shown in cross-sectionin Fig. 3 i. 0., of circular form with a segment cut off. It is also provided with a series of equidistant flanges or threads, 8, parallel to each other, and which may be. at right angles to the axis of the bolt or oblique thereto.

In putting my device into use I first place bolt D with its flat surfacetparallel withthe corresponding flat surface of plate 0. The bolt or screw will then enter socket a. I then press plates is Z tightly together upon the back of the car'seat, chair, or sofa. By turning bolt D ICO screw-threaded adjusting-pin, c, as herein set forth and described.

2. In portable head-rests, a clamping device consisting of jaws 70 Z, one of which, is, is provided with a socket and a cutoff plate, 0, as herein shown, and a clamping-bolt in crosssection a segment of a circle, provided with equidistant flanges s and a socket, q, as and for the purposes herein set forth.

HUGH TI. PARKHILL.

Witnesses:

W'M. Pixiziruint, O. ll-t. Knmrrr. 

